The time between a lightning flash and the following thunderclap may be used to estimate, in kilometers, how far away a storm is. How far away is a storm if 12 seconds elapse between the lightning and the thunderclap?
Use the formula d = Start Fraction lower t over 3 End Fraction , where t is the time, in seconds, between the flash and the thunderclap.
A. 4 kilometers
B. 5 kilometers
C. 15 kilometers
D. 36 kilometers
d = Start Fraction 12 over 3 End Fraction = 4 kilometers
Answer: A. 4 kilometers